Results 21 to 30 of about 12,318 (243)
Case study: A simple optical inverse problem from a geometrical optics point of view [PDF]
Journal of Advanced Dielectrics, 2019 In this paper, we revisit the simple problem of reflection from a dielectric sphere for light rays and define a form of optical inverse problem in the sense of geometrical optics (GO).
Anshi Yan, Yangjie Liu, Wenfeng Wang
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IEEE Access, 2019 A ray tracing method based on the geometrical optics and physical optics approximation is proposed for calculation of the scattering from rough metal surface with rough coating in terahertz regime.
Rui Wang, Guangbin Guo, Lixin Guo
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Convex Obstacles from Travelling Times
Mathematics, 2021 We consider situations where rays are reflected according to geometrical optics by a set of unknown obstacles. The aim is to recover information about the obstacles from the travelling-time data of the reflected rays using geometrical methods and ...
Lyle Noakes, Luchezar Stoyanov
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Useful Solutions for Plane Wave Diffraction by Dielectric Slabs and Wedges
International Journal of Antennas and Propagation, 2012 This work presents an overview of available uniform asymptotic physical optics solutions for evaluating the plane wave diffraction by some canonical geometries of large interest: dielectric slabs and wedges.
Gianluca Gennarelli, Giovanni Riccio
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Restoring geometrical optics near caustics using sequenced metaplectic transforms
New Journal of Physics, 2020 Geometrical optics (GO) is often used to model wave propagation in weakly inhomogeneous media and quantum-particle motion in the semiclassical limit. However, GO predicts spurious singularities of the wavefield near reflection points and, more generally,
N A Lopez, I Y Dodin
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Numerical description of mode coupled waves in inhomogeneous magnetized plasmas [PDF]
EPJ Web of Conferences, 2019 Geometrical optics (GO) ray tracing has been widely used for a description of electron cyclotron resonance waves in inhomogeneous magnetized fusion plasmas.
Yanagihara Kota +2 more
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Results in Optics, 2021 The Laser Guide Star Facility (LGSF), as the most important part of the adaptive optics system of the large ground-based telescope, is aimed to generate multiple laser guide stars at the sodium layer.
Yan Mo +3 more
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Photonics, 2022 We consider a version of the supporting quadric method for designing freeform mirrors that generate prescribed irradiance distributions in the near field. The method is derived for a general case of an incident beam with an arbitrary wavefront.
Leonid L. Doskolovich +7 more
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Orthogonally coupled geometrical constraints in optics design
Journal of the European Optical Society-Rapid Publications, 2019 Modern optical multi-camera systems require integrating many camera modules in a small volume. A new space-saving concept for such imaging systems is presented, based on intersecting optical paths that utilize one or more common elements for the ...
Jyrki Kimmel
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The classical limit of quantum optics: not what it seems at first sight
New Journal of Physics, 2013 What light is and how to describe it has always been a central subject in physics. As our understanding has increased, so have our theories changed: geometrical optics, wave optics and quantum optics are increasingly sophisticated descriptions, each ...
Yakir Aharonov +5 more
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